At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

BRS 2 Part Calcium & Alkalinity Total Package with Dosers

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Quick Overview

Why does BRS recommend this?

With everything included to maintain Calcium, Alkalinity and Magnesium the BRS 2 Part Total Package with Dosers is one of the best values for starting and automating a 2 part dosing system. As stability is a key to success with reef aquariums, the included 1.1 mL dosing pumps makes automating the 2 part dosing very easy and keeps levels from having daily swings.

The Calcium, Alkalinity, and Magnesium parts each come in ½ or 1 gallon containers depending on the size you choose.

This kit will help maintain Calcium, Alkalinity, and Magnesium parameters in the tank in easy once a day doses. It also makes it easy by automating the 2 Part Solution using a dosing pump to make your daily additions. Your corals will be healthier and grow faster.

With everything included to maintain Calcium, Alkalinity and Magnesium the BRS 2 Part Total Package with Dosers is one of the best values for starting and automating a 2 part dosing system. As stability is a key to success with reef aquariums, the included 1.1 mL dosing pumps makes automating the 2 part dosing very easy and keeps levels from having daily swings.

The Calcium, Alkalinity, and Magnesium parts each come in ½ or 1 gallon containers depending on the size you choose.

This kit will help maintain Calcium, Alkalinity, and Magnesium parameters in the tank in easy once a day doses. It also makes it easy by automating the 2 Part Solution using a dosing pump to make your daily additions. Your corals will be healthier and grow faster.

BRS 2 Part Calcium & Alkalinity Total Package with Dosers

The 2 Part Calcium & Alkalinity Total Package with Dosers includes everything you need to make your own 2 Part Solution and begin dosing. Simply measure the dry material with a household measuring cup and mix with water in the included gallon jugs. This kit will help maintain Calcium, Alkalinity, and Magnesium parameters in the tank in easy once a day doses. It also makes it easy by automating the 2 Part Solution using a dosing pump to make your daily additions. Your corals will be healthier and grow faster.

Each Kit Includes:

2 BRS 2 Part Dosers 1.1 mL per minute

½ or 1 gallon of Calcium

½ or 1 gallon of Alkalinity

½ or 1 gallon of Magnesium Chloride

½ or 1 gallon of Magnesium Sulfate

3 clear PVC 1 gallon jugs with caps

(2) 1 ounce dispensing pumps

(2) 100 mL cups for measuring liquid solution

1 Funnel

Directions

BRS 2 Part Dosers are ideal for automating 2 Part dosing. Our peristaltic pump has an extremely accurate 1.1mL per minute flow rate. Silent operation. The pump utilizes a unique system that attaches the drive shaft at the bottom and top to eliminate shaft wobble. Precision two roller design extends pump life and will not back siphon. Not for continuous use.

Use the BRS Reef Calculator to calculate dosage amounts. For more information on how to use the 2 Part Solution click here.

BRS 2 Part Calcium & Alkalinity Total Package with Dosers

At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

Ships today
order in

4h 7m

Free economy shipping on every order!

At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

I will never run out of 2 part!!By Bradon 10/17/2016

Brad would recommend this product to a friend

This is a great package and in the long run will save money. The only thing is the dozers in my kit put out a little more than 1.1 ml per minute. I adjusted the timers accordingly and it's all good. No more spilling 2 part dosing by hand. You will like this product.

Easy But Not As DescribedBy Jeffreyon 12/30/2015

Jeffrey would recommend this product to a friend

This is my first dosing pump. Very easy to set up and get working, but calibration showed them to be 1.8 and 2.0; not the 1.1 described. Calibrating them before running on the tank is absolutely necessary!

BRS auto dosersBy Richon 12/27/2015

Rich would recommend this product to a friend

Well I waited a long time to get these dosers it should have been the first item to get, a must have item for the reef tank, works well and priced right when on sale thank you BRS.

Great Product!By Hitchon 9/20/2015

Hitch would recommend this product to a friend

Works amazingly! My corals have been doing great and I feel I have taken the last step to get my tank to support the harder SPS corals. Paired it with the Reef Keeper plus and would never do a tank without this system again.

Best upgrade I have done for my tankBy Williamon 9/6/2015

William would recommend this product to a friend

Great deal and super easy to use. Corals really seem to like it.

Great Dosing PumpsBy NatePon 8/19/2015

NateP would recommend this product to a friend

I'm pretty new to dosing and have been really impressed by this package. The dosing pumps were really easy to mount and get set up. BRS did some videos on how to program the apex controller that made setting up the program to time the outlets pretty straight forward. The included instructions and supplies made mixing the different solutions pretty easy. I'm still measuring and adjusting the dose to match what my tanks consumes, but overall I have been really pleased with the results.

Great package for the moneyBy elwaineon 6/9/2015

elwaine would recommend this product to a friend

Getting the dosing pumps calibrated and the system up an running was easy. Very clear instructions and helpful video tutorial. The dosing pumps are quite good, but they are not as precise as pumps I've used in the past... pumps that cost a lot more than those that come with the BRS package. However, they are good enough to have kept my Alkalinity and Calcium rock steady for a month, now. So they provide all the accuracy I need. I would definitely buy this again. I see no reason to spend big bucks on very precise pumps when these do the job perfectly.

Great ValueBy brianon 5/6/2015

brian would recommend this product to a friend

This is my go to kit for dosing. Includes everything you need to automate 2-part dosing, given you have a controller (or timer). The dosing pumps are fairly accurate (+/- .1ml/min), and durable. The only con would be trying to figure out the Captcha in order to submit this review.

DOSING PUMPSBy MAUROon 5/3/2015

MAURO would recommend this product to a friend

I PURCHASES A REEF KEEPER AND TWO DOSING PUMPS, UNBEATABLE COMBINATION.

What Are You Waiting For?By Chrison 5/1/2015

Chris would recommend this product to a friend

I was very intimidated about having to wade into dosing. This kit and the video took all the mystery out of. Than you BRS, for taking the mystery out of 2-part and providing everything you need to get started in one easy purchase. I paired the pumps with my Apex and slowly dialed it on over about 2 weeks. My alk, calc and pH are now much more stable. Overnight pH drop is much less than it was now that I slowly dose alk after the lights go out. If you're at all intimidated about dosing, don't be! Just get this kit.

cant suceed without thisBy ryanon 3/25/2015

ryan would recommend this product to a friend

switching over my tank to a sps dominate tank. my success would not be possible without this. very easy to mix and the pumps are extremely well built and accurate. there isn't a lot of information online on how to program the pumps, so research is necessary, especially with the apex. but once you are dialed in life is great and the tank is happy

BRS dosing systemBy scootersmarineon 1/22/2015

scootersmarine would recommend this product to a friend

Just received my new BRS dosing system and am very happy. Very well packaged and no damage. Dosing pumps were a breeze to set up and were perfectly calibrated. Mixing up ALK and CAL solutions was simple and mixed supper clear. Looking forward to see the great affects its going to have on my 90gal reef tank.

Product Questions

Does the 1 gallon total package mean it comes with one gallon jugs or that it only makes one gallon of each solution?

If this package makes more than 1 gallon how much does it make?

Question by: Louis on Jun 9, 2014 2:12:00 PM

Hi Louis,
The 1 gallon package contains 1 gallon of each dry reagent. How many gallons of solution this makes depends on the particular ingredient but your looking at about 8 gallons of alkalinity and 6 gallons of calcium in most circumstances.

Other than Fauna Marin's Balling system, is there another system you can use to go along with BRS two part? I'm trying to wait for you guys to get some Fauna Marin stuff in. But it seems like that is a lost cause for the near future. Thanks

Wait if there is magnesium calcium and alkalinity wouldn't i need three pumps

Question by: Cameron on Oct 5, 2013 5:45:00 AM

Hi Cameron,
Magnesium declines very slowly and generally only needs to be added once a month or sometimes even less so most folks opt to save the expense and just dose the magnesium by hand when necessary.

Hi - I've just started to use this system and mixing my first batch of Magnesium. Instructions say to 'let it sit' after mixing but not for how long. Is it a few minutes, hours? Please clarify. Thanks!

Question by: Andrew Bruemmer on Apr 25, 2016 11:54:00 PM

Great question!
We find it best to let the mix settle after mixing for around 4-5 hours, going back and checking the mix and if salt is still present you can mix it up regularly 2-3 times per day until the solution dissolves.

I love this system and just want to make sure Im dosing everything the tank needs. Do you still recommend the Redsea coral colors or something else? I know people dose B-Ionic because it just has all of that stuff but I want to stay with your 2-part! :)

Question by: Kyle R on May 18, 2016 11:30:00 AM

Great question!
Our system will work great in conjunction with the red Sea coral color program and comes highly recommended on larger tanks where trace elements are not replaced with large water changes. This is a great (affordable alternative which will give you control over the amount you are dosing in.

Can any combination of calcium, alk, and mag be mixed together and dosed from one pump, if not and i need to use individual pumps can should they be dosed at different times and how much time between each?

Question by: Robert on Nov 28, 2013 7:39:00 AM

Hey Robert,
The solutions must remain seperate from each other until they are added into the aquarium. You will want individual dosers for the calcium and alkalinity (which two are included in this package so your covered there). Most folks dose the magnesium by hand as it typically only needs to be added weekly or monthly, compared to the daily dose on the calcium and alkalinity.

Its best to dose them at separate times to high flow areas of the tank, though if dosed slowly to separate high flow areas of the tank its generally not an issue if you need to dose them at the same time either.

Hey Michael,
That would be the best way to do it, though if they were running for the same amount of time (which would generally be the case) you could run them off a timer with two outlets as well like our Hamilton Digital Timer. That said though, might be worth picking up a simple controller like the Reef Keeper Lite Basic. By the time you add up the cost of 4 timers its basically paid for itself not to mention the temp probe and controller functions themselves.

What is used for the Alkalinity solution. I can tell from the pic that the calcium is provided via Calcium Chloride, but I can't tell if it is Sodium Carbonate or Sodium Bi-Carbonate for the Alkalinity, as I would like to judge how this will effect my pH.

Question by: Tim on Sep 5, 2014 2:07:00 PM

Hi Tim,

You can use either Sodium Carbonate (soda ash) or Sodium Bicarbonate to supplement Alkalinity. The main difference between the two is that Soda Ash will raise your pH along with Alkalinity and Sodium Bicarbonate will not raise pH. Soda ash will also raise the Alkalinity more by volume so you will need to adjust dosage based on which one you choose.

If your system naturally runs at a high pH (above 8.3 - 8.5) I would go with Sodium Bicarbonate but otherwise Soda Ash will help bring up your systems pH.

The 2 Part Calcium & Alkalinity Total Package with Dosers includes everything you need to make your own 2 Part Solution and begin dosing. Simply measure the dry material with a household measuring cup and mix with water in the included gallon jugs. This kit will help maintain Calcium, Alkalinity, and Magnesium parameters in the tank in easy once a day doses. It also makes it easy by automating the 2 Part Solution using a dosing pump to make your daily additions. Your corals will be healthier and grow faster.

Each Kit Includes:

2 BRS 2 Part Dosers 1.1 mL per minute

½ or 1 gallon of Calcium

½ or 1 gallon of Alkalinity

½ or 1 gallon of Magnesium Chloride

½ or 1 gallon of Magnesium Sulfate

3 clear PVC 1 gallon jugs with caps

(2) 1 ounce dispensing pumps

(2) 100 mL cups for measuring liquid solution

1 Funnel

Directions

BRS 2 Part Dosers are ideal for automating 2 Part dosing. Our peristaltic pump has an extremely accurate 1.1mL per minute flow rate. Silent operation. The pump utilizes a unique system that attaches the drive shaft at the bottom and top to eliminate shaft wobble. Precision two roller design extends pump life and will not back siphon. Not for continuous use.

Use the BRS Reef Calculator to calculate dosage amounts. For more information on how to use the 2 Part Solution click here.

Ask a question

Product Questions

Does the 1 gallon total package mean it comes with one gallon jugs or that it only makes one gallon of each solution?

If this package makes more than 1 gallon how much does it make?

Question by: Louis on Jun 9, 2014 2:12:00 PM

Hi Louis,
The 1 gallon package contains 1 gallon of each dry reagent. How many gallons of solution this makes depends on the particular ingredient but your looking at about 8 gallons of alkalinity and 6 gallons of calcium in most circumstances.

Other than Fauna Marin's Balling system, is there another system you can use to go along with BRS two part? I'm trying to wait for you guys to get some Fauna Marin stuff in. But it seems like that is a lost cause for the near future. Thanks

Wait if there is magnesium calcium and alkalinity wouldn't i need three pumps

Question by: Cameron on Oct 5, 2013 5:45:00 AM

Hi Cameron,
Magnesium declines very slowly and generally only needs to be added once a month or sometimes even less so most folks opt to save the expense and just dose the magnesium by hand when necessary.

Hi - I've just started to use this system and mixing my first batch of Magnesium. Instructions say to 'let it sit' after mixing but not for how long. Is it a few minutes, hours? Please clarify. Thanks!

Question by: Andrew Bruemmer on Apr 25, 2016 11:54:00 PM

Great question!
We find it best to let the mix settle after mixing for around 4-5 hours, going back and checking the mix and if salt is still present you can mix it up regularly 2-3 times per day until the solution dissolves.

I love this system and just want to make sure Im dosing everything the tank needs. Do you still recommend the Redsea coral colors or something else? I know people dose B-Ionic because it just has all of that stuff but I want to stay with your 2-part! :)

Question by: Kyle R on May 18, 2016 11:30:00 AM

Great question!
Our system will work great in conjunction with the red Sea coral color program and comes highly recommended on larger tanks where trace elements are not replaced with large water changes. This is a great (affordable alternative which will give you control over the amount you are dosing in.

Can any combination of calcium, alk, and mag be mixed together and dosed from one pump, if not and i need to use individual pumps can should they be dosed at different times and how much time between each?

Question by: Robert on Nov 28, 2013 7:39:00 AM

Hey Robert,
The solutions must remain seperate from each other until they are added into the aquarium. You will want individual dosers for the calcium and alkalinity (which two are included in this package so your covered there). Most folks dose the magnesium by hand as it typically only needs to be added weekly or monthly, compared to the daily dose on the calcium and alkalinity.

Its best to dose them at separate times to high flow areas of the tank, though if dosed slowly to separate high flow areas of the tank its generally not an issue if you need to dose them at the same time either.

Hey Michael,
That would be the best way to do it, though if they were running for the same amount of time (which would generally be the case) you could run them off a timer with two outlets as well like our Hamilton Digital Timer. That said though, might be worth picking up a simple controller like the Reef Keeper Lite Basic. By the time you add up the cost of 4 timers its basically paid for itself not to mention the temp probe and controller functions themselves.

What is used for the Alkalinity solution. I can tell from the pic that the calcium is provided via Calcium Chloride, but I can't tell if it is Sodium Carbonate or Sodium Bi-Carbonate for the Alkalinity, as I would like to judge how this will effect my pH.

Question by: Tim on Sep 5, 2014 2:07:00 PM

Hi Tim,

You can use either Sodium Carbonate (soda ash) or Sodium Bicarbonate to supplement Alkalinity. The main difference between the two is that Soda Ash will raise your pH along with Alkalinity and Sodium Bicarbonate will not raise pH. Soda ash will also raise the Alkalinity more by volume so you will need to adjust dosage based on which one you choose.

If your system naturally runs at a high pH (above 8.3 - 8.5) I would go with Sodium Bicarbonate but otherwise Soda Ash will help bring up your systems pH.

Full Details

The 2 Part Calcium & Alkalinity Total Package with Dosers includes everything you need to make your own 2 Part Solution and begin dosing. Simply measure the dry material with a household measuring cup and mix with water in the included gallon jugs. This kit will help maintain Calcium, Alkalinity, and Magnesium parameters in the tank in easy once a day doses. It also makes it easy by automating the 2 Part Solution using a dosing pump to make your daily additions. Your corals will be healthier and grow faster.

Each Kit Includes:

2 BRS 2 Part Dosers 1.1 mL per minute

½ or 1 gallon of Calcium

½ or 1 gallon of Alkalinity

½ or 1 gallon of Magnesium Chloride

½ or 1 gallon of Magnesium Sulfate

3 clear PVC 1 gallon jugs with caps

(2) 1 ounce dispensing pumps

(2) 100 mL cups for measuring liquid solution

1 Funnel

Directions

BRS 2 Part Dosers are ideal for automating 2 Part dosing. Our peristaltic pump has an extremely accurate 1.1mL per minute flow rate. Silent operation. The pump utilizes a unique system that attaches the drive shaft at the bottom and top to eliminate shaft wobble. Precision two roller design extends pump life and will not back siphon. Not for continuous use.

Use the BRS Reef Calculator to calculate dosage amounts. For more information on how to use the 2 Part Solution click here.

Reviews

I will never run out of 2 part!!By Brad on 10/17/2016

Brad would recommend this product to a friend

This is a great package and in the long run will save money. The only thing is the dozers in my kit put out a little more than 1.1 ml per minute. I adjusted the timers accordingly and it's all good. No more spilling 2 part dosing by hand. You will like this product.

Easy But Not As DescribedBy Jeffrey on 12/30/2015

Jeffrey would recommend this product to a friend

This is my first dosing pump. Very easy to set up and get working, but calibration showed them to be 1.8 and 2.0; not the 1.1 described. Calibrating them before running on the tank is absolutely necessary!

BRS auto dosersBy Rich on 12/27/2015

Rich would recommend this product to a friend

Well I waited a long time to get these dosers it should have been the first item to get, a must have item for the reef tank, works well and priced right when on sale thank you BRS.

Great Product!By Hitch on 9/20/2015

Hitch would recommend this product to a friend

Works amazingly! My corals have been doing great and I feel I have taken the last step to get my tank to support the harder SPS corals. Paired it with the Reef Keeper plus and would never do a tank without this system again.

Best upgrade I have done for my tankBy William on 9/6/2015

William would recommend this product to a friend

Great deal and super easy to use. Corals really seem to like it.

Great Dosing PumpsBy NateP on 8/19/2015

NateP would recommend this product to a friend

I'm pretty new to dosing and have been really impressed by this package. The dosing pumps were really easy to mount and get set up. BRS did some videos on how to program the apex controller that made setting up the program to time the outlets pretty straight forward. The included instructions and supplies made mixing the different solutions pretty easy. I'm still measuring and adjusting the dose to match what my tanks consumes, but overall I have been really pleased with the results.

Great package for the moneyBy elwaine on 6/9/2015

elwaine would recommend this product to a friend

Getting the dosing pumps calibrated and the system up an running was easy. Very clear instructions and helpful video tutorial. The dosing pumps are quite good, but they are not as precise as pumps I've used in the past... pumps that cost a lot more than those that come with the BRS package. However, they are good enough to have kept my Alkalinity and Calcium rock steady for a month, now. So they provide all the accuracy I need. I would definitely buy this again. I see no reason to spend big bucks on very precise pumps when these do the job perfectly.

Great ValueBy brian on 5/6/2015

brian would recommend this product to a friend

This is my go to kit for dosing. Includes everything you need to automate 2-part dosing, given you have a controller (or timer). The dosing pumps are fairly accurate (+/- .1ml/min), and durable. The only con would be trying to figure out the Captcha in order to submit this review.

DOSING PUMPSBy MAURO on 5/3/2015

MAURO would recommend this product to a friend

I PURCHASES A REEF KEEPER AND TWO DOSING PUMPS, UNBEATABLE COMBINATION.

What Are You Waiting For?By Chris on 5/1/2015

Chris would recommend this product to a friend

I was very intimidated about having to wade into dosing. This kit and the video took all the mystery out of. Than you BRS, for taking the mystery out of 2-part and providing everything you need to get started in one easy purchase. I paired the pumps with my Apex and slowly dialed it on over about 2 weeks. My alk, calc and pH are now much more stable. Overnight pH drop is much less than it was now that I slowly dose alk after the lights go out. If you're at all intimidated about dosing, don't be! Just get this kit.

cant suceed without thisBy ryan on 3/25/2015

ryan would recommend this product to a friend

switching over my tank to a sps dominate tank. my success would not be possible without this. very easy to mix and the pumps are extremely well built and accurate. there isn't a lot of information online on how to program the pumps, so research is necessary, especially with the apex. but once you are dialed in life is great and the tank is happy

BRS dosing systemBy scootersmarine on 1/22/2015

scootersmarine would recommend this product to a friend

Just received my new BRS dosing system and am very happy. Very well packaged and no damage. Dosing pumps were a breeze to set up and were perfectly calibrated. Mixing up ALK and CAL solutions was simple and mixed supper clear. Looking forward to see the great affects its going to have on my 90gal reef tank.

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